package org.example.jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;

public class JDBCLogin2 {
    public static void main(String[] args) {
        ;
        try( Connection connection = DBUtil.getConnection();) {
            Scanner scanner= new Scanner(System.in);
            System.out.println("请输入用户名");
            String username = scanner.nextLine();
            System.out.println("请输入密码：");
            String password = scanner.nextLine();
            String sql= "SELECT nickname FROM user WHERE username=? AND password=?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,username);
            ps.setString(2,password);
            ResultSet rs  = ps.executeQuery();
            if (rs.next()){
                String nickname = rs.getString("nickname");
                System.out.println("恭喜你"+nickname+"登录成功");
            }else {
                System.out.println("用户名或密码错误");
            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }

    }
}
